package org.example.spring_book.controller;

import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import org.example.spring_book.enums.BookStatusEnum;
import org.example.spring_book.model.BookInfo;
import org.example.spring_book.model.PageRequest;
import org.example.spring_book.model.PageResponse;
import org.example.spring_book.model.Result;
import org.example.spring_book.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@Slf4j
@RequestMapping("/book")
@RestController
public class BookController {
    @Autowired
    private BookService bookService;

    //添加图书
    @RequestMapping(value = "/addBook",produces = "application/json")
    public String addBook(BookInfo bookInfo){
        log.info("添加图书, bookInfo:{}",bookInfo);
        //参数校验
        if (!StringUtils.hasLength(bookInfo.getBookName())|| !StringUtils.hasLength(bookInfo.getAuthor())||bookInfo.getCount() == null
        || bookInfo.getPrice() ==null
        || !StringUtils.hasLength((bookInfo.getPublish()))) {
            return "参数不合法,请重新添加";
        }
        //插入数据
        try {
            Integer result = bookService.insertBook(bookInfo);
            if (result == 1) {
                return "";
            }
        }catch (Exception e) {
            log.error("数据插入发生异常,e:",e);
        }
        return "数据插入失败,请联系后台管理员";
    }

    @RequestMapping("/getListByPage")
    //查询图书信息  翻页
    public Result<PageResponse<BookInfo>> getListByPage(PageRequest pageRequest, HttpServletRequest request) {
        log.info("获取图书列表,pageRequest: {}",pageRequest);
        PageResponse<BookInfo> bookInfoPageResponse = new PageResponse<>();
        try {
            bookInfoPageResponse = bookService.getListByPage(pageRequest);
        }catch (Exception e) {
            log.error("获取图书列表失败");
            return Result.fail();
        }

        return Result.success(bookInfoPageResponse);
    }
    @RequestMapping("/queryBookById")
    public BookInfo queryBookById(Integer bookId) {
        long start = System.currentTimeMillis();

            BookInfo bookInfo = bookService.queryBookById(bookId);
            return bookInfo;
    }

    @RequestMapping(value = "/updateBook",produces = "application/json")
    public String updateBook(BookInfo bookInfo) {
        log.info("更新图书,bookInfo: {}",bookInfo);
        try {
            Integer result = bookService.updateBook(bookInfo);
            if (result >0) {
                return "";
            }
            return "图书更新失败";
        }catch (Exception e) {
            log.error("更新图书失败,e:",e);
            return "数据库操作失败";
        }
    }

    //删除图书
    @RequestMapping(value = "/deleteBook", produces = "application/json")
    public String deleteBook(Integer bookId) {
        log.info("删除图书,bookId: {}",bookId);
        try{
            BookInfo bookInfo = new BookInfo();
            bookInfo.setId(bookId);
            bookInfo.setStatus(BookStatusEnum.DELETED.getCode());
            Integer result = bookService.updateBook(bookInfo);
            if (result >0) {
                return "";
            }
            return "图书删除失败";
        }catch (Exception e) {
            log.error("删除图书失败, e:",e);
            return "数据库操作失败";
        }
    }

    //批量删除图书
    @RequestMapping("/batchDeleteBook")
    public Boolean batchDeleteBook(@RequestParam List<Integer> ids) {
        log.info("批量删除图书,ids:{}",ids);
        try{
            //执行SQL
            bookService.batchDelete(ids);
            return true;
        }catch (Exception e) {
            log.error("批量删除图书失败, ids:{}",ids);
        }
        return false;
    }

}
